OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..5000
EXAMPLE
4 is a term since lambda(4) = lambda(6) = 2.
MATHEMATICA
Select[Range[10^4], CarmichaelLambda[#] == CarmichaelLambda[# + 2] &]
Position[Partition[CarmichaelLambda[Range[63000]], 3, 1], _?(#[[3]]==#[[1]]&), 1, Heads->False]//Flatten (* Harvey P. Dale, Aug 16 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Amiram Eldar, Apr 03 2020
STATUS
approved